Lathe headstock and feed mechanism with rapid traverse



May 29, 1923. v 1,457,095-

W. E. WARD LATHE HEADSTOCK AND FEED MECHANISM WITH RAPID TRAVERSE Original Filed May 16, 1919 -4 Sheets-Sheetvl v M ff TUE/J??? May 29, 1923. 1,457,095

W. E. WARD LATHE HEADSTOCK AND FEED MECHANISM WITH RAPID TRAVERSE Original Filed May 16, 1919 4 Sheets-Sheet 2 7-0/1: @aliuae ZJQJYZ May 29, 1923.

w. E. WARD LATHE HEADSTOCK AND FEED MECHANISM WITH RAPID TRAVERSE Original Filed May 16, 1919 4 Sheets-Sheet 5 If! If) a 66 4 0" N h a? /f 62% 6f I v A? I l' iz;

1' II jf'" E i g I 1 1 I fT Tue V57;

May 29, 1.923. 1,457,095 1 W. E. WARD LATHE HEADST OGK AND FEED MECHANISM WITH RAPID'TRAVERSE Original Filed May 16, 1919 4 SheetsSheet 4 34 7/40 o r///////////////////////////Q UaZZzce 6 ZJaJ-Z III/I/I/I/I/l/III Patented May 29, 1923.

currenstares WALLACE n. WARD, or

N YORK, N. AssIGNoR To ARTHUR miners, or ROCHESTER, NEW YonK- 1.

Application filed May 16, 191e, Serial No:,297,587.

To allwhom 2'25 may concern:

' Be it known that I, WALLACE E. a citizen of the United States, and resident of New York, county of New York, State of 6 New York, have invented an Improvement in Lathe Headstock and Feed Mechanism with Rapid Traverse, of which the followlng description, in connection with the, accompanying drawings, is a specification, l ke characters' on the drawings representing hke parts in each of the several views.

This invention relates to lathe mechanlsm and more particularly to improvements in the gear connections to the feed shaft for the tool carriage whereby a requ slte range of feed changes may be quickly and easily effected, and in conjunction therew th a rapidtraverse connection to the feed shaft is provided that is actuated directly from a high speed shaft of the machine that is preferably the prime drlve shaft. One mportant object of the invention is-to provide a rapid traverse connectlon to the feed shaft that is connectible therewith alternatively with the feed gear'train, but is actuated entirely apartfrom and independent of the feed gear train. In accordance wlth my 1nvention the rapid traverse transmission to the feed shaft is preferably derived ,dlrect from the prime drive shaft of the machlne while the feed transmission is preferably de: rived from the spindle through suitable gearing. The foregoing and other ob ects and advantages of'the inventlon will more fully appear from the followlng detailed description, and the'distinctive' features of novelty will be pointed out in the appended claims. I'

Referring to the drawings:

body'ing the invention; I

Fig. 2 is an end-view thereof, F ig. 3 is a diagrammatic sectlon illustrating the' operatingconnections to the rapid 46 traverse and to the "feed transmission,

Fig. 4 is a partial section showingv particularly the feed change'mechanism and the connection to the rapidtraverse; and

jFig'; 5 is'a detail" cross sectlon show ng the interconnection of certain clutch elements;

10 indicates the lathe bed with a tool carriage -11 fitted ,for movement may be connected'as-usual to not only feed the carriage 11 but also toefiect a cross feed "WAnD,

end thereof a gear 28 with clutch sleeve 24:

' gear 32 meshing in one position'with a larger Fig; l is a side elevation of alathe em therealongunder theact'uation of a feed shaft 12 which.

the extremity of this shaft Renewed October 20, 1922. Serial No. 595,se5

(not shown) of the tool slide thereon. 13 indicates the headstock housing in which is journaled the headstock spindle 14 equipped. with a usu al center 15 and with a faceplate 16 fitted tov the end thereof. Also journaled in the headstock housing in parallelism with the spindle is a hasfixed on a projecting end thereof a driving pulley 18, this shaft being for purposes of the present description the prime drive shaft of the machine deriving its. power from any suitable source such as an electric motor 19 mountedon the top of'thefhead stock housing. The shaft 17 has slidably' keyed thereon in spaced apart relation a pair of pinion'blocks 19, p

of diverse sizes adapted tobe selectively engaged with a series of spaced apart gears 21 fixedly carried on a sleeve 2l 'loosely jou'rna'led on a shaft 22. The sleeve 21 is equipped at its inner end with a'clutch face 23 which is 'engageable by a co-ope'rative clutch face on a clutch sleeve 24 slidably keyed at the inner end of a shaft 25' jour naled in the housing, andhaving fixed to its T FHCEE r high speed shaft 17 which 1 20 formed with pinions other end a' pinion 26 in mesh with an in- I shaft 25 has loosely fitted adjacent the inner the inner side thereof adapted to beengaged ternal gear 27 of the face plate 16. The I a clutch face at i by a clutch face on the. outenend of the Y to the right as seen in Fig. 3. The gear 28 is engaged by a pinion 29 fixed-on a shaft 30 jo'urnaled'in the housing. This'shafthas a gear '31 looselyjournaled thereon in meshwith the. smallest one of the and also has slidably keyed thereon another" one" ofthe gears 21; The gears 31, 32Zare upon'fashifting of the same set 'of-gears'21 1 equipped with'hub sleeves extending towards 7 each other with opposite clutch faces 31?, 32 'respectively adapted to be brought into engagement as the gear 32 is shifted" to the right, this shiftingdisconnecting it from the gear: 21. This arrangement permits a range of twelve speed changes from the shaft 17. to the this construction specifically, forms no part ofthe present invention. A reduced innerend 12 of the feed shaft 12 is journaled as indicated at 33 in a bearing associated with the ,feed box housing Mandend extending I spindle as will be readily un- .derstood but need not be further elaborated. 1 herein, since within said housinghas fixed thereon a pinion 35; This pinion is in mesh with a pinion 36 mounted on a countershaft 37 journaled at the base of the feed box housing this pini'o'n being normally loose on said shaft but adapted to be clutched thereto by a suitable clutch device 38. The shaft 87 has its outer end mounted in an extended sleeve bearing 39 of the feed box housing and its projecting extremity has fixed thereon-a sprocket wheel 40 which is engaged by a sprocket chain it which is driven by a sprocket wheel 4'3 mounted on a stub shaft 43. The sprocket wheel 42 has rigid therewith another sprocket wheel 4% which is driven by a sprocket chain 45 from a sprocket wheel t6 fixed on the prime drive shaft 17. Through this connection the feed shaft may be rapid traversed by movement derived directly from the prime drive shaft through the described sprocket chains and shaft 67. Journaled in the feed box housing in endwise alinement with the feed shaft extension 12 and abutting thereagainst is a shaft 457 having loosely mounted thereon spaced apart gears t8, 49 of diverse sizes and equipped with clutch faces 4st, 49 on the sides thereof facing each other. These clutchfaces are adapted to be selectively engaged by a clutch sleeve 50 slidably keyed on the shaft L7. The shaft t? has also slidably keyed on the inner end thereof another cluteh sleeve 51 which in one position is adapted to engage with a clutch face formed on the gear 35. The gears e8, t9 are in mesh respectivelv with diverse sized gears 52 52 of a change gear bank 52 all the gears of which are keyed on a shaft 53 journaled in the feed box. The several gears of the gear bank 52 are selectively engageable by a pinion 5a mounted on a radius arm 55 swingingly mounted on a shaft 56 journaled in the feed box, the pinion 5 f being constantly driven in its different angular positions by gear connections 57 from said shaft. The shaft 56 has slidably keyed on a projecting end portion 58 thereof a pair of gears 59,. 60 of diverse sizes both carried with a spacing sleeve 61 for movement together and having an outwardlv 62 for convenient actuation. These gears are adapted to be shifted so that either the smaller gear may be engaged with a larger gear 63, or the larger gear 60 may be brough into engagement with a smaller gear Gtof a gear pair journa-le d on a stub shaft 65 of the headstock housing, these gears being driven from a gear 66 keyed on a shaft 67 journaled in the headstock housing and actuated by a gear 68 slidably keyed thereon. Thevgear 68 is driven in one direction when it is positioned so as to engage with a gear 69 fixed on the spindle 14 while when slid to its other position it is driven in the opposite direction by an intermediate projecting flange head gear 70 which is driven from a gear 71 also fixed, on the headstock spindle, this accomplishing a reversal of the direction of feed movement as required, It is essential that both the clutches 38, 51 he not engaged at the same time as this would result in an interlock of the rapid traverse and the feed gear train. I therefore connect these'clutches by means of a rocker arm 72 fixed at an intermediate point to a shaft 73 journaled in the housing and having its opposite ends engaged with the shipper grooves 38, 51, of the respective clutch sleeves, this shaft hav ing a projecting outer end thereof equipped with a suitablehandle 73*. Thus as either clutch is shifted into operative position it is insured that the other clutch will be disengaged at the same time. The clutch sleeve 50 is engaged by a suitable shipper (not shown) mounted on a rock shaft 50 and actuated by an external handle 50" at the front of the feed box. The radius arm 55 has a projecting handle 55 at the front of the feed box co-operative with a locking plate 55 as is usual in this type of device. lVith the de scribed system of connections, the feed shaft may thus derive rapid traverse movement direct from the prime drive shaft without interfering with or disarranging any setting of the feeds that may have been made, this being accomplished by merely shifting the clutch lever 78* so as to engage the clutch 38 with the gear 36, which operation at the same time shifts out the clutch sleeve 51 from engagement with the gear 35. When the feedsare to be connected for o eration the lever 73 is shifted in the other irection to engage the shaft t? through the clutch 51 with the feed shaft. The feed changes accomplished by the gear bank 52 which con sists as illustratively shown, of eight'pinions, is multiplied by two through the selective engagement of the shaft 4L7 with either the gear t8 or the gear 49 according to the adjustment ofthe clutch sleeve 50 and the sixteenfeed changes thus attained are again multiplied by two according to the shifting of the gear pair 59, 60 on the shaft extension 58 to drive either the smaller gear 59 from the larger gear 63 or the larger gear 60 from the smaller gear Get. The direction of feed movement thus effected may be reversed by the shifting of the gears 60, 68 alongthe shaft 67 to cause it to mesh with either the spindle gear 69 or the intermediate 70. I am aware that the invention may be e nbodied in other specific forms without departing from thespirit or essential attri: butes thereof, and I therefore desire the present embodiment to be considered all respects as illustrative and not restrictive, reference being had to the appended claims rather than to the foregoing description to indicate the scope of the invention. I W

Having described my invention, What I claim as new and desire to secure by Letters Patent is:

l. Lathe mechanism comprising a spindle,"a high speed drive shaft, a feed shaft,

means for connecting said high speed drive shaft directly with said feed shaft for rapid traverse, including a countershaft mounted in parallelism with said feed shaft and also with said high speed drive shaft and with said spindle, there being a discon-, necting clutch between said high speed drive shaft and feed shaft adapted to disengage the same in either direction of movement, and change feed gearing connections from said spindle to said feed shaft, also including a disconnecting clutch; 2. Lathe mechanism, comprising a sp1n-.

die, a high speed drive shaft, a feed shaft, means for connecting said high speed drive shaft directly with said feed shaft for rapid traversing including a disconnecting clutch, a change feed gear train to said feed shaft including a disconnecting clutch, and means associated with said disconnect,-

ing clutches for preventing the connection of more than one of them at the same time on either direction of movement.

3. Lathe mechanism, comprising a spindle, a high speed drive shaft, a feed shaft,

direct connections from said high speed .speed drive shaft, a work spindle, a feed shaft, a co-untershaft driven direct from said drive shaft having a gear loose thereon meshing with a gear fixed onthe feed shaft, a clutch for engaging'sai d countershaft with the gear thereon, a change feed gear connection from the spindle to said feed shaft including a countershaftmounh ed in axial alinement with the feed shaft, a clutch for connecting said axially alined shaft with the feed shaft, and means for preventing the engagement of both of said clutches at the same time.

5'. Lathe mechanism, comprising a spinspeed gearing dle, a high speed drive Shaft, change spew. gearing from said drive shaft to said spin- I dle, .a feed shaft for operating the work carriage, change feed gearing from said spindle to said feed shaft, and a rapid trav-' erse connection'direct from said high speed drive shaft' to said feed shaft and engage able therewith selectively with said feed change gearing, said rapid traverse 0011- nection and said change feed gearing from the spindle to the feed shaftbeing equipped with interconnected means whereby when one thereof is engaged with the feed shaft the other is wholly disconnected therefroin 6. Lathe mechanism, comprising a high speed drive shaft, a ,workspindle, change for connecting said drive shaft to saidspindle,'a.feed shaft'ifor'operating the work carriage, change feed gearingfrom said spindle to said feed shaft including a disconnecting clutch, and a countersh'aft mounted in parallelism with directlyfrom said high speed drive shaft,

said countershaft equipped with means for engaglng the same in driving relation to, said feed shaft selectively with said change said feedshaft and connected to .be driven I feed gearing, and of a character to be wholly disengaged speed speed with said spindle, a feed shaft connecting said spindlewith said feed shaft for operating the work carriage, change feed gearing connecting said spindle with said feed shaft including a shaft mounted in axial alinement with said feed shaft and having a clutch for engaging the same therewith, a counter shaft for imparting rapid traverse movement mounted inparallelism with saidfeed shaft and connected to be driven directly from said high speed for engaging said countershaft in driven relation to said feed drive shaft, and means shaft connected with the first named clutch so that said feed connection and said rapid traverse connection may not be both en gaged at the same time.

In testimony whereof ,I name to this specification.

WALL cnE. WA'RD, I

from the feed shaft when the change feed gearin'g is engaged therewith;

7. athe mechanism, comprising ahigli drive shaft, a work spindle, change I gearing connecting said drive shaft, i for operat--. mg the workcarriage, change feed gearing have signed 

